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java.lang.NullPointerException: at org.apache.commons.vfs2.impl.DefaultFileSystemManager.closeFileSystem(DefaultFileSystemManager.java:1126) at org.objectweb.proactive.extensions.dataspaces.vfs.VFSMountManagerHelper.closeFileSystems(VFSMountManagerHelper.java:316) at org.objectweb.proactive.extensions.dataspaces.vfs.VFSSpacesMountManagerImpl.unmountAllFileSystems(VFSSpacesMountManagerImpl.java:414) at org.objectweb.proactive.extensions.dataspaces.vfs.VFSSpacesMountManagerImpl.close(VFSSpacesMountManagerImpl.java:223) at org.objectweb.proactive.extensions.dataspaces.core.NodeConfigurator$NodeApplicationConfigurator.close(NodeConfigurator.java:410) at org.objectweb.proactive.extensions.dataspaces.core.NodeConfigurator$NodeApplicationConfigurator.access$300(NodeConfigurator.java:357) at org.objectweb.proactive.extensions.dataspaces.core.NodeConfigurator.tryCloseAppConfigurator(NodeConfigurator.java:303) at org.objectweb.proactive.extensions.dataspaces.core.NodeConfigurator.close(NodeConfigurator.java:280) at org.objectweb.proactive.extensions.dataspaces.core.DataSpacesNodes.closeNodeConfig(DataSpacesNodes.java:237) at org.ow2.proactive.resourcemanager.nodesource.dataspace.DataSpaceNodeConfigurationAgent.closeNodeConfiguration(DataSpaceNodeConfigurationAgent.java:280)

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